linux-kernel - Re: general protection fault in hash_mac4

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Message-ID: <20200108095415.GB795@breakpoint.cc>
Date:   Wed, 8 Jan 2020 10:54:15 +0100
From:   Florian Westphal <fw@...len.de>
To:     syzbot <syzbot+cabfabc5c6bf63369d04@...kaller.appspotmail.com>
Cc:     coreteam@...filter.org, davem@...emloft.net, fw@...len.de,
        info@...ux.net, jeremy@...zel.net, kadlec@...filter.org,
        kstewart@...uxfoundation.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
        pablo@...filter.org, syzkaller-bugs@...glegroups.com,
        tglx@...utronix.de
Subject: Re: general protection fault in hash_mac4_uadt

syzbot <syzbot+cabfabc5c6bf63369d04@...kaller.appspotmail.com> wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    c101fffc Merge tag 'mlx5-fixes-2020-01-06' of git://git.ke..
> git tree:       net
> console output: https://syzkaller.appspot.com/x/log.txt?x=130000d1e00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=f2f3ef188b7e16cf
> dashboard link: https://syzkaller.appspot.com/bug?extid=cabfabc5c6bf63369d04
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14896eb9e00000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=139ed115e00000
> 
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+cabfabc5c6bf63369d04@...kaller.appspotmail.com

#syz dup: general protection fault in hash_ipportnet4_uadt